Antenna construction



Jan. 16 1940 PALMER 2,186,934-

ANTENNA CONSTRUCTION Filed July 11, 193@ .fi'owar d Palm INVENTOR.

BY M

ATTORNEYS.

Patented Jan. 16, 1940 a i UNITED STATES PATENT OFFICE ANTENNA CONSTRUCTION Howard Palmer, Kennett Square, Pa. Application July 11, 1939, Serial No. 283,885

4 Claims. (01. 250-33) This invention relates to antenna construcing the roof 5 of the vehicle, at a point adjacent tion, the primary object of the invention being to to the opening formed in the roof, for the recepprovide an antenna particularly designed for use tion of the antenna support. Thus it will be seen in connection with motor vehicles. that due to this construction, the tubular hous- 5 An important object of the invention is to proing 6 is insulated from the roof of the vehicle. 5 vide an antenna adapted to be supported on the Mount d on th upp d of th tu ula h sroof of a motor vehicle, means being provided 111g ,1 a Circular housing the housing being for raising and lowering the antenna, to the end p v ed W n Opening throu h Which the that when the antenna is out of u e, it'may b antenna indicated at I 6, extends, the antenna m moved to a position adjacent to the roof of the being p v l y mounted wi hin h h usin as 10 vehicle, where it will be out of the way. at IT.

Another object of the invention is to provide AS C y ShOWn y Figure 2 0f t a an antenna operating means which will hold the the antenna iS pivotaliy mounted in S a ay antenna in either its extended or inactive posithat an appreciable length of e antenna eX- tion, insuring against objectionable noise due to tends into the housing, beyond the P o Po t 15 vibrations of the vehicle on which the antenna The control Which is n cated at I 8 is is mounted, slidably mounted within the tubular housing 6,

With th for goin nd th bjects in View the upper end of the control rod extending into i which will appear as the description proceeds, the circular housing Where it is Provided the invention resides in the combination and With an enlarged Opening l9 through Which t e 20 arrangement of parts and in the details of coninner end of the ant na te ds. A coiled struction hereinafter described and claimed, it Spring indicated t 20 as one of its ends bearbeing understood that changes in the precise ing against the Pivot Point While t PP embodiment of the invention herein described, Site end thereof e gages the uppe e d f the ma b d ith th scope of h t is maimed, control rod at a point adjacent to the enlargedzs without departing from the spirit of the inven- Opening S it W ll be Seen that due tov w this construction, the coiled spring 20 will act to Referring t t drawing; exert a pressure between the pivot point I! and Figure 1 is an elevational view of the roof of inner end of the control rod l8, holding t e a motor vehicle body equipped t an antenna antenna in its positions of adjustment, and in- 80 constructed in accordance with the invention. Suring against rattling f e va ious elements Figure 2 is vertical sectional View through of the antenna, due to vibrations of the motor the car roof, illustrating the antenna and its sup- Vehicleport, as mounted on th r f, A knob indicated at 2| is secured to the free Figure 31 sectional View taken on line 3 end of the control rod l8, and afiords means 85 of Figure 2 whereby a person may conveniently operate the Referring to the drawing in detail the roof of control rod, to accomplish the purpose Of the a motor vehicle is indicated by the reference invention character 5 Rubber cushioning members 25 are secured on o The t support embodies a tubular the antenna l 6, and prevent the damaging of the ing 6 externally threaded, to acc t th top when the antenna is moved to its inactive nuts 1 and s between which the contact plate 9 Positionis held. The lead-in wire indicated at 10 is In the operation of the antenna, it will be soldered or otherwise secured to the contact plate Seen that by forcing the control rod l 8 d y, 9. the antenna I6 will swing downwardly to a posi- The reference character ll designates a washer mm as shown by Figure 1, Where it Will b Out that is fitted against the nut 8, the washer provid- Of t e w of obstructions, w i h would othering a support against which the insulating mem- Wise damage the antennai ber l2 engages. The insulating member [2 is When it is desired to use the antenna, the conformed with a cut-out portion, and as shown, is I ed It may be p SWingihg the antenna. 50 positioned on the tubular housing 6. to its normal operative position, as shown by An insulating member indicated at I3 is pro- Figure 2- vided with an extension N that is disposed with- It might be further stated that a nut indicated in the cut-out portion of the insulating memat 23 is used in conjunction with the insulating u be:- I2, the insulating members 12 and I3, clampmembers [2 and I3, to force the insulating memu bers I3 into close engagement with the roof 5' of the vehicle, thereby firmly securing the antenna support in position. v

The spring obviously holds the rod yieldingly in either of its two extreme positions. Should the rod, while raised, come against an obstruction as the vehicle moves forwardly, it would be pressed back against the action of the spring and past the dead center, to its other, or lower extreme position where it would remain until raised. a

The antenna can be tubular or solid. and of inert metal. Thus should it become caught while the vehicle is backing, it would bend without breaking and could thereafter be easily straightened for further use.

The roof lining is indicated by the reference character 26, and is providedwith an opening through which the control rod l8 moves.

In view of the foregoing detail description, it

isbelieved that a further description'as to the operation of the antenna is unnecessary.

What is claimed is: 1

1. A motor vehicle antenna comprising a tubular support adapted to be secured within an opening in a motorvehicle top, a housing secured at the upper end of the tubular support, an antenna rod pivotally connected to the housing, one end of the antenna rod extending 'into'the antenna housing, a control rod extending into the housing and having pivotal connection with the antenna rod and adapted to swing the antenna rod to its vertical or horizontal position, and yieldable means for holding the antenna in its positions of adjustment. Y

2. A motor vehicle antenna comprising a tubular support adapted to be secured within an opening of a motor vehicletop, means for insulating the tubular support from the, top of the vehicle, an antenna, means for pivotally mounting the antenna at the upper end of the tubular support, a control rod operating through the tubular support and having pivotal connection with the antenna whereby the antenna may be moved to its active or inactive position, and means for holding the antenna in its positions of adjustment.

3. A motor vehicle antenna comprising a tubular support adapted to be extended through an opening in a motor vehicle top, means for insulatingthe tubular support from the top, an antenna rod, means for pivotally mounting the antenna rod at the upper end of the tubular support, a control rod movable through the tubular support, said control rod having an enlarged opening into which one end of the antenna extends, a coiled spring disposed between the pivot point of the antenna and engaging the control rod, said rod adapted to move the antenna to its vertical or horizontal position, said spring adapted to exert pressure on the antenna holding the antenna in its positions oi-adjustment, and a lead-in wire in circuit with the tubular housing.

4; A motor vehicle antenna comprising a tubular support adapted to be secured in an opening of a motor vehicletop, a circular housing mounted at the upper end of the support, an antenna rod pivotally mounted within the housing, one end of the antenna rod extending into the housing, a control rod extending through the tubular support andhaving one end thereof disposed Within the housing, said control rod having an enlarged opening through which one end of the antenna extends, a coiled spring mounted on the antenna and .bearing against the pivot point or the antenna, said spring also bearing against the control rod, said rod adaptedto move the antenna rod to its positions of adjustment," and said coiled spring adapted to hold the antenna against displacement after it has been adjusted.

' HOWARD PALMER. 

